Have used both Nissin Di700 and the Godox ad200, both with a wireless trigger mounted on the camera hot shoe.
After seeing the much greater power. better value for the $ and adaptability of the Godox, I have sold the Nissin.
Highly recommend getting the optional Godox round head and extension cable which just plug onto and replace the standard fresnel rectangular head. Godox also make some very good magnetic accessories for the round head (filters, snoot, grid pattern / directional accessories that just clip on and off with magnets). Godox was much cheaper and better than the Nissin, and unfortunately you cannot pair the different brand lights together.
Godox also have a really wide choice of more powerful lights - only downside is their unhelpful user manuals but there are lots of how to guides for Godox products on you tube. Only the Godox wireless trigger is brand specific to Fuji (get the Pro model) - Godox lights and accessories are all generic so if you have to sell there will be a wide market for them. Google reviews of ad200 and you will see the following they have - you can also get the ad200 standard for about half the price of the ad200 pro and their is no appreciable real world difference in practice between the 2 units - but do get the round head accessory and cable meaning you can place them anywhere.
Only issue might be if you want to put your speed light on top of the camera hot shoe (not a good place anyway and ad200 is too heavy to be a camera attachment) - much better to have the speed light off camera on a tripod or light stand to hold it.